html, body {
  height: 100%;
}
body {
  margin: 0;
  padding: 0
  
}
.h-100 {
  height: 100%;
}
.wrap {
  margin: auto;
}
.flex {
  display: flex;
}
.flex-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.flex-column {
  flex-direction: column;
}

.draw-box {
  background-color: #fff;
  width: 800px;
  height: 800px;
  box-shadow: 2px 2px 10px 1px #bebebe;
}
.tool-wrap {
  margin-bottom: 20px;
  padding: 0 10px;
  width: 100%;
  height: 40px;
  border: 1px solid #eee;
}
.tool-wrap .line-item {
  position: relative;
  margin-right: 10px;
  width: 20px;
  height: 20px;
  border: 1px solid #eee
}
.tool-wrap .line-item.active {
  background-color: #0df;
}
.tool-wrap .line-item::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  margin: auto;
  border-radius: 50%;
  background: #000;
}
.tool-wrap .line-item[data-width='2']::before{
  width: 2px;
  height: 2px;
}
.tool-wrap .line-item[data-width='5']::before{
  width: 5px;
  height: 5px;
}
.tool-wrap .line-item[data-width='10']::before{
  width: 10px;
  height: 10px;
}